baber/WOPTO huggingface dataset:
Patent GB-428215-A (GB)
Title: The manufacture of the mono-and di-acetates of the dihydro-follicle hormone
IPC: C07J75/00
Filed: 1933-10-26
Abstract: The mono- and di-acetates of the dihydrofollicle hormone are prepared by subjecting the dihydrofollicle hormone to the action of glacial acetic acid in the presence of hydrobromic acid, hydriodic acid, or toluene sulphonic acids which act as acid catalysts.  In an example dihydrofollicle hormone obtained as described in Specification 428,132 is dissolved in a glacial acetic acid-hydrobromic acid solution (3 : 2), allowed to stand 2 days, poured into water, extracted with ether and purified by fractional crystallization from methanol to yield the mono- and di-acetates of dihyrofollicle hormone.  The first of these when injected subcutaneously into castrated mice shows an efficiency of 10 million mouse units per gram, and the second shows an activity of 20 million mouse units per gram.  In the case of the mono-acetate it is the alcohol group in ring D which is esterified.ALSO:The mono- and di-acetates of the dihydrofollicle hormone are prepared by subjecting the dihydrofollicle hormene to the action of glacial acetic acid in the presence of hydrobromic acid, hydriodic acid, or toluene sulphonic acids which act as acid catalysts.  In an example dihydrofollicle hormone obtained as described in Specification 428,132 is dissolved in a glacial acetic acid-hydrobromic acid solution (3 : 2), allowed to stand 2 days, poured into water, extracted with ether and purified by fractional crystallization from methanol to yield the mono- and di-acetates of dihydrofollicle hormone.  In the case of the mono-acetate it is the alcohol group in ring D which is esterified.
Patent GB-814178-A (GB)
Title: Apparatus for regulating the delivery of rotary piston compressors
IPC: F04C28/14
Filed: 1955-10-20
Abstract: 814,178. Rotary pumps. BORSIG A.G., and WANKEL, F. Oct. 20, 1955 [Oct. 29, 1954; May 11, 1955], No. 29993/55. Class 110 (2). A rotary compressor of the n and n + 1 lobe type has a part cylindrical slide valve 9 co-operating with inlet and outlet ports 34 in the outer rotor 2 to control the suction and discharge operations simultaneously and so control the volume of gas pumped. In one embodiment, Fig. 1, the slide valve 9. has one edge 12 abutting a fixed member 8 so that an edge 10 of the member 8 determines the end of the suction operation from an inlet passage 6 and an edge 11 of the slide valve 9 determines the beginning of the discharge operation. When the slide valve 9 is moved to the right the edge 10 still controls the inlet operation but when a port 34 has passed the member 8 some gas will be discharged back into the inlet passage 6 through the gap that will now exist between the member 8 and the edge 12. At the same time the edge 11 will have moved to the right and the discharge operation will begin later. In a modification, Fig. 5, the slide valve 9 has a further part having a control edge 113 for determining the end of the outlet operation and causing compressed gas in the space 5 to do work on the rotors until a control edge 24 determines the beginning of the suction operation. When the slide valve 9 is turned far enough the edge 113 uncovers a passage 120 which communicates with the inlet passage 6, or with the atmosphere so that the pump can idle. In another embodiment, Fig. 3, the member 8 is dispensed with and the slide valve 17 controls the end of the suction operation and the beginning of the discharge operation being provided for the latter with hinged control pieces which are raised by stationary guide rails 19 when the valve is rotated. In another embodiment the member 8 is dispensed with and the slide valve controls the end of the discharge operation and the beginning of the suction operation.
Patent GB-785095-A (GB)
Title: An improved shirt or the like garment
Inventor: RACHER WILLIAM HERBERT
IPC: A41B1/00
Filed: 1955-10-20
Abstract: 785,095. Shirts; blouses. CAMPBELL (HANOVER SQUARE), Ltd.. J. Oct. 20, 1955, No. 30004/55. Class 141 In a collar attached shirt or blouse, the chest covering portion comprises a panel 2 having a loose vertical edge 2a extending from the neck down the centre of the front and a panel 1 having a loose edge 1a which extends from the neck diagonally across the front and partly underlies the panel 2.
Patent GB-713358-A (GB)
Title: Cyclic pitch control mounting for rotary wing aircraft
IPC: B64C27/605
Filed: 1951-12-21
Abstract: 713,358. Helicopters. HILLER HELICOPTERS. Dec. 21, 1951 [Dec. 26, 1950], No. 30027/51. Class 4 A cyclic pitch control lever for rotary wing aircraft having a rotor rotatable about an axis includes a flexible resilient mass surrounding said axis to provide a universal mounting, said mass rotatably supporting a control ring about said axis, said control ring being connected by a linkage to said rotor. The rotor shaft 3 is mounted on bearings 18 for rotation in a tube 4 fast with the aircraft structure. A sleeve 14 is clamped against a collar 17 on the tube 4 by a locking ring 17<SP>1</SP> and has a rubber sleeve 13 bonded thereto, the outer surface of the rubber sleeve being surrounded by a further bonded sleeve 16 formed on its lower edge with a flange 19. A collar 21, formed with a depending cyclic pitch control lever 22, and a bearing 26, is clamped against the collar 21 by a ring 23. The outer race 28 of the bearing 26 is mounted in a control ring 27 which is connected to cyclical pitch changing mechanism (not shown) and in the embodiment described is actuated by links 12 coupled to the blades of a'control rotor. Rotation of the collar 21 is prevented by a scissor linkage 33,
Patent GB-870335-A (GB)
Title: Improvements in or relating to photographic cameras fitted with focal plane shutters
IPC: G03B9/34
Filed: 1957-09-25
Abstract: 870,335. Photographic cameras. KAMERAWERKE NIEDERSEDLITZ VEB. Sept. 25, 1957 [Sept. 28, 1956], No. 30032/57. Class 98(1) In a focal-plane shutter, in which the starting position of an index pin, which travels synchronously with the' leading shutter member, can be varied to vary the exposure time and the distance of travel to the point in its path at which the trailing shutter member is released, another pin, which also moves synchronously with the leading shutter member, drives a retard mechanism and prevents the first pin from reaching the trailing member release point until the desired exposure time has elapsed. As shown, two blinds 6, 7 are wound on coaxial rollers 10, 11 respectively, and the trailing blind roller 11 is retained in the set position by the engagement of latch 29 with pin 30 carried by member 31 rotatable with roller 11. The shutter is wound by means of a knob on spindle 18 fast with non-return ratchet 21 which carries pawl 23. Pawl 23 pushes gear wheel 17, which is freely rotatable on spindle 18, by means of nose 19 and roller 10 is driven through gears 14-16 to wind blind 6 on roller 10 and tension the counter spring roller (Figs. 4, 6, not shown). Nose 32 on gear 14 engages pin 33 on member 31 to wind blind 7 on roller 11 against its spring tension. The shutter speeds are set by engaging an index pin (Fig. 1, not shown) in holes 24 in gear wheel 14 which is fast with shaft 12 of roller 10. On actuating shutter release button 43, pawl 23 is removed from nose 19 and blind 6 runs down carrying the pin in a hole 24 into engagement with a lever 27 of latch 29 to release pin 30 and blind 7. However, if a pin 35 carried on wheel 14 reaches an arm on a toothed segment 36 before the pin in a hole 24 reaches lever 27, a gear retard 37-40 slows blind 6 (which is clear of the exposure aperture) before blind 7 is released. The holes 24 are accordingly so spaced that at an appropriate instant in the running of the retard, the lever 27 is actuated and the trailing blind 7 released. On re-winding the shutter, the gear retard is returned under its own spring 41. In another form (Figs. 4-6, not shown) two separate non- coaxial blind rollers 10, 11 are provided. Sliding plate and pivoted disc focal plane shutters operating on the same principle are referred to.
Patent GB-1014003-A (GB)
Title: Improvements in or relating to continuous casting of steel wire
IPC: B22D11/00
Filed: 1962-08-03
Abstract: <PICT:1014003/C6-C7/1> A process of continuously casting steel wire comprises subjecting a molten steel bath in a degassed state to a gas pressure to drive it upwardly through a die extending into the bath and leading to a cooling die through which the metal passes and solidifies.  The electrically heated crucible 2 is filled through the opening 7 while a reducing gas such as argon is introduced through a pipe 12.  After filling the chamber is evacuated through pipe 13 until degassing is completed.  The degassing may be improved by creating a sub-atmospheric pressure in the crucible before filling or by bubbling argon through the melt via an inlet 18 and die 15. Deoxidation may be effected by entraining deoxidants e.g. fine magnesium powder in the argon gas. C or alloying ingridients such as W, Ta, V, Ni, Cr, Mn may be similarly added.  When starting casting, a cock 20 in the metal outlet pipe is closed and argon gas is supplied to the crucible through the pipe 12 and the inlet 18, to pressurize the container. Then the admission of argon through the inlet 18 is stopped, causing the metal to rise rapidly in the die 15 leading to a copper cooling tube 16 where the metal solidifies and opens the valve 20, passing through to the tube 21. The tube 16 may be cooled by water, an organic product such as tetrachlorodiphenyl or a low melting point liquid metal such as sodium or potassium.  A lubricant such as liquid sodium and a coolant such as hydrogen, cracked ammonia, or liquefied alloy of sodium and potassium may be introduced into the clearance space caused by shrinkage of the metal due to solidification in the tube 16.  That portion of the tube beneath the cover 6 may be electrically heated so that solidification is effected only beyond the cover.  At the outlet of the valve 20 heat treatment may be applied to the wire.
Patent GB-302466-A (GB)
Title: Improvements in or relating to electric motor-generators
IPC: B60L9/04
Filed: 1927-11-09
Abstract: 302,466. Fletcher, G. H., Tustin, A., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 9, 1927. Motor - generators. - In continuous-curreut motor generator sets of the kind employing a mechanically-coupled exciter for the purpose of maintaining constant the voltage of the generator when the speed varies, the exciter is self-excited and auxiliary field windings are provided on the motor and generator in addition to and separate from the main field windings, the exciter being connected directly across the auxiliary winding of the motor and in series with that of the generator. In Fig. 1 the motor 2 of a motorgenerator forming part of the equipment of an electric traction system, is provided with a main series field winding 4 and an assisting winding 10 supplied by the shunt-wound exciter 12. The generator 3 has a shunt field winding 5 and an opposing winding 11 connected across the exciter armature. In a modification, the exciter armature and auxiliary field winding 11 are in series across the terminals of the generator 3 so that the voltage across the winding 11 is the resultant of the output voltages of the exciter and generator. The exciter is so designed that in normal conditions, its voltage is slightly less than that of the generator and varies more rapidly with change of speed. The generator may be provided with an additional series winding to provide voltage compensation for variation in the generator load. According to the Provisional Specification, the generator may have an additional field coil in series with the motor, and the shunt field winding of the exciter may be connected in series with the auxiliary field winding of the motor.
Patent GB-707525-A (GB)
Title: New or improved machine for the production of pile reinforcements from metal wire
IPC: B21F27/20
Filed: 1952-11-28
Abstract: 707,525. Making metal fabric. GEORGII, H. P. Nov. 28, 1952 [Nov. 30, 1951], No. 30159/52. Class 83 (4) Coiling; drawing.-In a machine for making helical pile reinforcements longitudinal reinforcing wires 12 are mounted in holes in a tapered spider 7 rotated. from an electromotor 2. Wire is fed from a. reel through an adjustable drawing die and wound about the arms 10 of the spider. In order to straighten the wire between the arms 10 a roller 16 on an arm 15 rotated from the spider contacts the wire between the arms of the spider to straighten it and convert the helix into a winding which is square in plan. The turns are transferred to the wires 12 and secured thereto.
Patent GB-822572-A (GB)
Title: Preparation of -y--d-olefinic ketones and dienones
Filed: 1956-10-04
Abstract: g -d -Olefinic ketones are prepared by heating a b -ketone ester with an a -b -olefinic or an a -b -acetylenic alcohol in the presence as catalyst of at least one alkanolate of a metal from Group II or III of the Periodic Table.  Specified metals are magnesium and aluminium. Examples relate to the preparation of 2-methyl-hept-2-ene-6 - one, 2,6 - dimethyl - undeca - 2,6 - diene - 10 - one, pseudo-ionones, and pseudo-irones, identified by means of the semicarbazones. Specification 789,411, [Group IV (a)], is referred to.
Patent GB-952879-A (GB)
Title: Improvements in or relating to punching machines
IPC: B26F1/00
Filed: 1960-09-02
Abstract: 952,879. Cutting apparatus. J. SANDT A.G. Sept. 2, 1960 [Sept. 8, 1959], No. 30359/60. Heading B4B. A punching machine comprises a plurality of tables 3, Fig. 2, each of which is adapted to carry at least one web of material, such as leather, plastic, paper or textile material, and is guided so as to be displaceable in its longitudinal direction towards the lowering beam of the machine 1, and preparing stations 5, 6, 12, 13 provided lateral of the guide-way 14 of the tables and out of the region of the lowering beam, the tables being movable out of the guide-way to the preparing stations. The tables are movable on supports 16 having at least one roller 17 from the preparing stations to the guide-way 14 leading to the machine, the tables carrying punching tools above or below the material. A similar arrangement may be provided on both sides of the press and gang ways are left between the preparing stations and guide-ways for the operators of the machine. In another embodiment, the tables 3 are movable on stool-like supports 21, Fig. 3, having rollers 23 for the movement of the tables laterally from the guideway which is formed by rollers 231. The tables are arranged to be inclined by supports 25 when in the preparing stations to permit the passage of prepared tables along the guideway to the lowering beam of the machine. The machine may have two adjacent lowering beams arranged to be operated separately or together. Specification 945,944 is referred to.
Patent GB-861937-A (GB)
Title: Preparation of wet fuels
IPC: B02C13/20
Filed: 1958-09-23
Abstract: 861,937. Grinding fuel; impact pulverizers. SIMON, W. Sept. 23, 1958 [Sept. 27, 1957], No. 30408/58. Class 59 Pulverized solid wet bituminous fuels are ground to a granular size 1-2 mm. in a single process by means of apparatus comprising a plurality of grinding stages through which an air current flows continuously. In the apparatus shown, material to be ground is fed in at 3 and the conveying air at 4, the air being drawn through the apparatus by means of a fan 5. The grinding stages 6 to 9 are formed by rotary vanes. The grinding is effected by means of eddies formed in the air current, the eddies becoming progressively smaller from the coarse stage 6 to the first stage 9. The ground material is discharged at 10 and passed to a suspension drier, Fig. 3 (not shown). The fuel may be initially crushed before being fed to the grinding apparatus.
Patent GB-748129-A (GB)
Title: Improvements relating to washing machines
Inventor: SIBBALD FREDERICK ROY
IPC: D06F29/02
Filed: 1952-12-01
Abstract: 748,129. Washing- and drying-machines. HOOVER, Ltd. Nov. 27, 1953 [Dec. 1, 1952], No. 30474/52. Class 138 (2). In a washing-machine including a motor 14 for driving an impeller 13 in a washing liquid container 11, and a pump 21 for applying suction to a squeeze drier 12 incorporating a squeezing chamber independent of the washing container 11, both the impeller 13 and the pump 21 are permanently connected to be driven by the motor 14 all the .time the motor is running. The squeeze drier comprises a rubber bag 25 having a cover comprising an outer lid 34 and an inner perforated lid 38, suction being applied to the space between the lids. The outer lid may be moulded from synthetic resin and has a grid of ribs 36. The inner lid may be of pressed aluminium, is formed with indentations 40 and is secured to the outer lid by screws (not seen). The bag 25 has a flange 26 secured to a platform 27 by a clamping ring 28 and screws 29. The flange 26 also forms a sealing surface for a rib 35 on the outer lid 34. The cover is mounted by a universal joint 52, 53 on an arm 50 pivoted at 51. A valve 57 (Fig. 7, not shown) can be operated against the bias of a spring 60 by means of a button 69 to release the vacuum in the bag. This valve comprises a slidable member 57 having a diametral slot 62 and a flange 58 and packing ring 59. The button 69 is mounted on an arm 65 pivoted at 66 and having projections engaging below the flange 58. A longitudinally movable spring biased link 70 co-operates with the arm 65 to hold the valve open when the button 69 has been depressed. The link 70 is pivoted to one arm 71 of a bell crank pivoted at 51, the other arm 74 of the bell crank being adapted to engage a fixed stop 75 when the cover is opened so as to allow the valve 57 to close again. The bag is connected to the suction pump 21 by a flexible pipe 46 secured to a connection 45 moulded integrally with the flange 26. The motor 14 also drives a pump 18 for emptying the washing container 11. The pump 18 may be of centrifugal or other non-positive type permanently connected to the motor 14 through friction wheels 19, 20, and provided with means for closing the passage for liquid to or from it to prevent undesired emptying of the container, e.g. as in Specification 701,977. Delivery pipes 78, 79 for the emptying pump 18 and suction pump 21 respectively communicate with a common outlet 80 comprising a flexible hose 83 and swivel connection 81. The pipe 78 may be closed by a tap comprising a fixed washer and a spring-biased head (Fig. 6, not shown). Steps 95, 96 co-operate to keep the tap open when its handle 94 is raised and turned. A non-return rubber-clad ball valve 99 in the pipe 79 prevents water from being slowly drawn back into the bag 25 through the pump if the motor is left switched off without releasing the vacuum. Specifications 612,737 and 748,128 also are referred to.
Patent GB-1350245-A (GB)
Title: Flanged joint of the detachable type
IPC: F16L23/20
Filed: 1971-06-29
Abstract: 1350245 Joint-making packing; pipe joints STICHTING REACTOR CENTRUM NEDERLAND 29 June 1971 [29 June 1970] 30488/71 Headings F2B and F2G A joint between the faces of two members 1, 2, Fig. 1, comprises a plastically-deformable first packing 9, and a second packing 14 arranged in series in a leakage path, the second packing consisting of at least one conical metal ring whose two edges are confined in respective grooves in or on the joint faces. The packing 9 may be made of lead and the second packing 14 of soft aluminium. To break joint laterally, Fig. 5, a ring 24 on the flange 2 is screwed upwards to expose a slit so that a sawing or cutting tool can be inserted to cut through the second packing which may consist of separate or joined up conical rings 29.
Patent GB-814209-A (GB)
Title: Method for the vaporisation of liquefied low-boiling gases
IPC: F17C9/04
Filed: 1956-10-05
Abstract: 814,209. Vaporizing liquefied gases. METALLGESELLSCHAFT A. G. Oct. 5, 1956 [Oct. 10, 1955], No. 30498/56. Class 8(2). [Also in Group XXVI] Vaporization of liquefied low boiling point gas, e.g., ethane is effected by heat exchange with the vapour of a gas of higher boiling point e.g. propane in a condenser in which the propane is condensed and is then raised to a higher pressure by a pump 5, forced thereby through a vaporisor 3, a superheater 4, and a turbine 2 performing work and back to the condenser 1 thus performing a closed cycle. The vaporizor 3 is heated by warm dry air. In a modification liquefied methane is vaporized in two exchangers in series traversed by gaseous ethane and propane respectively each of which performs a close cycle as described above. In a further modification vaporized methane has its temperature raised from 0‹ to 200‹C. and is then expanded from 60 to 1 atmosphere pressure in a turbine performing work.
Patent GB-1526545-A (GB)
Title: Radar systems
IPC: G01S7/14
Filed: 1977-07-15
Abstract: 1526545 Radar; aerials FERRANTI Ltd 15 July 1977 [22 July 1976] 30531/76 Headings H4D and H4A In a radar system including a rotatable antenna array 10, the beam 13 may be caused to rotate relative to the antenna in a direction opposite to the direction of rotation of the antenna so that the speed with which the beam sweeps a target is reduced over a given sector, thereby increasing the detection probability over that sector. Target return information from the antenna array 10 is processed by radar 12 and supplied to a P.P.I. display 15 synchronized to the antenna rotation using an incremental encoder 17, counter 19 and sine-cosine generator 21. Beam shifting commences at a point in a revolution determined by a first reference signal applied to terminal 26 of a comparator 25 and ceases as determined by a second reference signal at 27. While beam 13 rotates from its normal position A to position B, the first control signal on line 28 turns on a sweep generator 30 which generates a ramp output signal causing the output frequency of radar 12 to vary. The second control signal on line 28 stops the sweep generator and resets its output to zero, and the beam is restored to position A. In an alternative embodiment, Fig. 2 (not shown), the display is synchronized to the speed of the beam rather than to the antenna. Application to forward-looking radar systems on vehicles is mentioned, or the antenna may be incorporated in the rotor blade of a helicopter.
Patent GB-361064-A (GB)
Title: Improvements in spinning pots used in the manufacture of rayon
IPC: D01D7/02
Filed: 1930-10-13
Abstract: 361,064. Spinning-pots for the manufacture of rayon. HONDA, F., 1, Naka-4- Chome, Kasugade-Cho, Konohana-Ku, Osaka, Japan. Oct. 13, 1930, No. 30636. [Class 120 (ii).] Spinning-pots are formed with a pith portion 1 of rolled paper or cloth impregnated with a phenol - formaldehyde condensation product, a peel layer of paper or cloth similarly impregnated forming an inner portion 3 and an outer portion 2, which may cover only the upper part of the outer surface, instead of the whole as shown, and a base member 4 of fibrous material also similarly impregnated or of a resinous compound, which may be extended to form a lining for the inside of the pot.
Patent GB-1348105-A (GB)
Title: Container covers
IPC: B65D77/20
Filed: 1972-06-30
Abstract: 1348105 Packaging foodstuffs; food containers H W PFEIFFER [trading as OHLER EISENWERK THEOB PFEIFFER] 30 June 1972 [6 June 1972] 30663/72 Headings B8C and B8D A container cover 2 of flexible foil material, e.g. aluminium is provided with first parallel reinforcing corrugations 2d extending between a pair of opposed edge portions of the cover, second reinforcing corrugations 2e extending transversely to the first corrugations and intersecting the first corrugations and a tear-tab 2a, 2b, 2c at one of the edge portions and arranged to tear the cover along the first corrugations into strips.